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Bu_.exe

The application Bu_.exe has been detected as a potentially unwanted program by 3 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages. The file has been seen being downloaded from search.results-hub.com.
Version:
1.0.5696.29103

MD5:
0a1d6ea1c5255dd015c0c9c7d66e1708

SHA-1:
ccfdb9f5415eeda3491b6b75fc0c2afcd3ef26bf

SHA-256:
a1897ff9ae4070d73740060bf683a5da633c7a2a0d28c761b3d6a09b9bba9b9e

Scanner detections:
3 / 68

Status:
Potentially unwanted

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
5/3/2024 6:09:58 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/BrowseFox.Gen
8.3.1.6

Clam AntiVirus
Win.Adware.Browsefox-725
0.98/20769

Reason Heuristics
Adware.Yontoo.Installer.Meta (M)
16.2.12.23

File size:
34.8 KB (35,629 bytes)

Product version:
2015.08.06

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\Documents and Settings\{user}\Local settings\temp\{random}.tmp\bu_.exe

File PE Metadata
Compilation timestamp:
6/4/2014 7:58:31 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
768:fcA6fnsOkMIc9uTXg8jyWPeXUAPkkFB65LZ7PBSvJRnQCEezL1:ufnsOk/cIDnj8F/oBSYCEezL1

Entry address:
0x31E4

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, E0, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, B8, 6C, 44, 00, E8, 1B, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 6B, 44, 00, 8D, 44, 24, 38, 50, 53, 68, DB, 73, 40, 00, FF, 15, 58, 71, 40, 00, 68, D0, 73, 40, 00, 68, C0, 2B, 44, 00, E8, 0D, 24, 00, 00, FF, 15, AC, 70, 40, 00, 50, BF, 00, F0, 46, 00, 57, E8, FB, 23, 00, 00...
 
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Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The file Bu_.exe has been seen being distributed by the following URL.

http://search.results-hub.com/.../unresultshubbar.exe

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